Cultivator.



Patented Oct; l4, I902.

J. W. ALEXANDER.

0U LTIVATOR.

(Application flied Dec. 31, 1901.)

shed 1.

2 Sheets- (No Model.)

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IIIHHW attomwqo No. 7|l,37l. Patented Oct. 14, I902.

J. W. ALEXANDER.

CULTIVATOR.

(Application filed Dec. 81, 1901.)

(No Model.) 2 Sheets-Sheet 2.

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UNTTED STATES PATENT OFFICE.

JOHN XV. ALEXANDER, OF \VI-IITEWOOD, SOUTH DAKOTA.-

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent N o. 71 1,371, dated.October 14, 1902.

Application filed December 31, 1901. Serial No. 87,907. (N0

To all whom it mag concern:

Be it known that I, JOHN W. ALEXANDER, a citizen of the UnitedStates,residin g at Whitewood, in the county of Lawrence and State ofSouth Dakota, have invented certain new and useful Improvements inCultivators; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in .cultivators, and isadapt-able to wheeled cultivators of both the riding and the walkingtype. t

The object of the invention is to provide a cultivator with improvedmeans for throwing the plows into and out of operation, to provide forthe attachment of a central or intermediate plow or shovel wheneverdesired between the two plows or shovels commonly used, to providesimple and effective cutting and covering blades interchangeable forattachment to the plows, and to generally simplify and improve theconstruction and increase the practical efficiency of agriculturalimplements of this class.

With these and other objects in view, which will readily appear as thenature of the invention is better understood, the same consists incertain novel features of construction and combination and arrangementof parts, which will be hereinafter fully described, defined in theappended claims, and illustrated in the accompanying drawings, in which-Figure 1 is a view in side elevation of a cultivator embodying myinvention. Fig. 2 is a top plan view thereof. Fig. 3 is a rear endelevation. Fig. 4 is a detail view of one of the bearing blocks orbrackets. Fig. 5 is a detail view of a set of weed-cutting blades. Fig.6 is a similar view of a set of coveringblades.

Referring now more particularly to the drawings, the numeral 1represents the main transverse arch-shaped frame-beam of the cultivator;2, the tongue or pole; 3, braces connecting the tongue to said beam; 4,a supporting-yoke provided with lateral arms 5 and supported by saidtongue and braces; (S and 7, braces respectively connecting said arms tothe frame-beam and to the tongue; 8, the

seat-supporting frame mounted upon said braces 3; 9, the doubletree ordraft attachment; 10 and 11, sets of links connecting the doubletree tothe arms 5; 12, stub shafts or axles projecting from the frame-beam 1,and 13 the carrying-wheels mounted on said shafts or axles. These partsmay be of the ordinary or any approved construction.

The plow-beams 14 are pivotally connected at their forward ends to bolts15, passed through spaced horizontal ears 16 and 17 on bearing bracketsor blocks 18, pivoted or journaled upon the arms 5 of the yoke at, whichbrackets areprovided with set-screws 19 to engage said arms and hold thebrackets fixed against movement, if desired. The beams 14 are thuspivoted to the brackets to swing laterally of the frame and to the arms5 by means of said brackets to swing in a vertical 7o plane.

The plows or shovels 20 may be of any approved type and applied to thebeams in any desired manner. If the cultivator be of the walking type ora combined walking and ridl ing cultivator, the beams will have handles21 to enable them to be readily controlled.

The lower ears 17 of the brackets 18 are formed with lateral extensions22, apertured for the reception of pivot-bolts, whereby a 26, which areconnected to the beams 14 by 0 links 27. This shaft is rocked oroscillated in one direction by a lever 28, connected by a link orjointed rod 29 to a third crank-arm 30 on said shaft. When the lever isswung forwardly, the crank-arms 26 will move up- 95 wardly, therebydrawing on the links 27 to regulate the depth of penetration of the soilby the plows or shovels or to raise said plows or shovels above theground-surface. When the lever is swung rearwardly, the plows will I00descend by gravity in an obvious manner. A

pawlsurface 31 on the lever is provided to The two beams 14 areconnectengage a rack 32 on a fixed part of the frame, whereby the leveris locked in adjusted position. By the construction described it will beseen that the plows may be readily controlled by the operator walkingbehind or occupying the drivers seat.

The plows or shovels are adapted to have applied theretorearwardly-extending diverging blades'33 or 34, the former having sidecutting edges 33 and the latter upturned deflectors 34% These blades areused, as shown, in pairs and are connected together at or near theirrear ends by a rod or bar 35, which serves as a spreader to level offthe soil. The ends of this rod are detachably fitted in perforations inthe blade. The blades 33 are used for cutting and turning down weeds orbushes, while the blades 34 are employed as coverers for throwing theloosened soil toward the plants. In each case the blades are formed withright-angularly-bent forward ends 36 to lie against the opposite sidesof the plow-standard and to be secured thereto in any desired manner. Inthe present instance I have shown the blades 33 pivoted by bolts 37 tothe standard and having arc slots 38 to receive threaded bolt ends 39,engaged by nuts 40, whereby the blades may be set at any desired angleand secured. The blades 34, which are interchangeable with the blades33, are secured to the standards in the same manner.

From the foregoing description, taken in connection with theaccompanying drawings, it is thought that the construction, mode ofoperation, and advantages of my invention will be readily apparentwithout requiring an extended explanation.

Various changes in the form, proportion, and the minor details ofconstruction maybe resorted to without departing from the principle orsacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed, and desired to besecured by Letters Patent, is

1. In a cultivator, the combination with a wheeled frame; of asupporting-arch connected to the frame and having lateral arms, bracketspivoted to said arms, each bracket having spaced horizontal ears, thelower ears being formed with extensions, bolts passed through the ears,plow-beams mounted to swing laterally on said bolts, and means foradjusting said beams in a Vertical plane, substantially as specified.

2. In a cultivator, a plow or shovel, rearwardly-extending divergingblades attached thereto, and a leveling bar or rod uniting said bladesnear their rear ends, substantially in the manner set forth.

3. In a cultivator, a plow or shovel, rearwardly-extending divergingblades,a leveling bar or rod uniting said blades near their rear ends,and means for adjustably attaching said blades to the plow or shovel,substantially as and for the purpose described.

4. In a cultivator, aplow or shovel, rear- Wardly-extending divergingblades, a leveling bar or rod uniting said blades near their rear ends,covering-deflectors upon the blades, and means for adj ustably attachingsaid blades to the plow or shovel, substantially as set forth.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN W ALEXANDER.

Witnesses:

WM. H. HIGHLEY, J. W. ADDIE.

